Tank for refrigerators



' TANK FOR REFRlGERATORS- APPLICATION men ms. 11, 1922.

MILLER.

Patented May 9, 1922.

3 SHEETS-SHEET I 1. MILLER TANK FOR REFRIGERATORS.

APPLICATION FILED FEB. H, 1922.

Patented May 9, 1922.

a SHEETS-SHEET 2.

' J. MILLER.

TANK FOR REFRIGERATORS.

APPLICATION FILED FEB. 11, 1922- 1,415,381 Patented May 9, 1922.

3 $HEETS-SHEET a. v

JOSEPH MILLER, OF IVIIHNEAPOLIS, MINNESOTA.

TAN K FOR REFRIGERATORS.

Application filed February 11, 1922.

To all whom it may concern.

Be it known that I. 'losrrir MILLER, a citizen of the United States,residing at Minneapolis, in the county of Henuepin and State ofMinnesota, have invented certain new and useful improvements in Tanksfor Refrigerators, of which the following is a specification referencebeing had therein to the accompanying drawings.

This invention relates to an apparatus for cooling air in a refrigeratoror ice-box. or in a storage compartment, whereby a great amount ofcooling possibi ities is obtained by the use of a relatively smallquantity of ice and salt. or the like.

Another object of the invention is the construction of a tank apparatusfor placing in a refrigerator of any desired type, which tank apparatusis provided in its bottom with a number of flue-structures for allowingair to have a greater area. of contact against the tank containing arefrigerating or cooling compound or element, such as a suitable brine.or ice and salt.

lVith these and other objects in view. my invention comprises certainnovel combinations, constructions and arrangements of parts as will behereinafter described illustrated in the accompanying drawings. and moreparticularly point-ed out in the appended claims.

ln the drawings:

igure l is a sectional view of a refrigerator. showing my tank apparatusin longitudinal section.

Figure 2 is a sectional iew. taken on ine Fig. 1. and looking in thedirection of the arrows.

Figure 3 is a longitudinal. sectional view of the tank apparatus throughone of the tluestructures thereof.

Figure 4. is a sectional view, taken on line 4.-+l;, Fig. and looking inthe direction of the arrows.

Figure 5 is a perspective view of the tank apparatus with the topremoved.

Figure 6 is a perspective view of the top of the tank apparatus.

Figure 7 is a perspective view of the any iliary casing of theflue-structure.

Referring to the drawings by numerals, 1 designates the refrigerator,which may be of any desired or ordinary type, and into which I placetank apparatus 2. The tank apparatus comprises a body 3 which isprovided with a bottom 4 and with a top 5.

Specification of Letters Patent.

Patented May, 9, 1922.

Serial No. 535,845.

The top 5 includes a cover 6, which cover 6 is provided with fasteningdevices 7 for holding the cover in place upon the top, and with asuitable handle 8. The refrigerator 1 is provided with a cover 9directly above (Fig. 1) the cover 6.

The bottom 4 of the body 3 includes a plurality of fiuestruct ures 10.Each. fluestructure 10 comprises a primary casing 11 and aninner,.auxiliary casing 12. Between the contiguous flue-structures 10and the flue-structures and the side walls of the body 3, are formed.preferably. V-shaped troughs 13 that, empty at one end into the drain 14of the tank. A suitable drain pipe 15 is connected at its inner end tothe drain 14 of the tank, with its outer end extending beyond the outerface of the refrigerator 1, Fig. 1.

Each auxiliary casing 12 comprises parallel sides 16 that are connectedat their upper edges by a substantially inverted, V- shaped, aperturedtop 17. Extending'from the lower edges of the sides 16 are a pluralityof legs 18, which legs are bent at an angle and are soldered to thebottom of the troughs 13 of the bottom structure 1 of the body 3. Theselegs 18 holdthe auxiliary casing in a spaced relation *ithin theprimarvcasing 11, so that air can circulate between the primary and auxiliarycasings of each flue-structure. indicated by the arrows in Fig. 1. Byreason of this structure, a greater area of metal surface is exposed forair iii-the refrigerator to come in contact with, andas a suitablerefrigerating element is in the body 3 against the'fluestructures, avery etiicient action is obtained by reason of the greater area ofrefrigerating surface being exposed, so that the air in the refrigeratorcan come in contact therewith.

Suitable packing 19, Fig. 1, is placed around the tank apparatus, toprevent any brine or salt water spilled over or upon the top 5 fromrunning down into the lower portion of the refrigerator.

It is to be noted that the inner end 21 (Fig. 3) of each flue-structureis closed, whereas the outer end 22 is open, but when the tank apparatusis in the refrigerator 1, the open end 22 of each flue-structure isclosed by the packing 19, so that no brine or water passing from the top5 can pass into the bottom or lower part of the ice-chest orrefrigerator 1.

My apparatus will keep ice cream from melting, at a minimum expense,since ice cream can be placed in receptacles in the lower part of therefrigerator 1, and by reason of the great exposure of the metal surfaceof the bottom structure of the tank apparatus, the air in therefrigerator is kept at low temperature.- or degree. The same principlecan be adopted for large refrigerating compartments, or plants, as it isoptional with the constructor to use as many, or as few, of theflue-structures as he desires.

While I have described the preferred em bodiment of my invention, andhave illustrated the same in the accompanying drawings, certain minorchanges or alterations may appear to one skilled in the art to whichthis invention relates, during the extensive manufacture of the same andI, therefore, reserve the right to make such alterations or changesshall fairly fall within the scope of the appended claims.

What 1 claim is:

1. In an apparatus of the class described,

' the combination. of a body provided with a bottom, said bottomcomprising a plurality of V-shaped troughs and a plurality offlue-structures having ll-shaped tops, a drain formed in said bottom,and an outlet pipe communicating with said drain.

2. In an apparatus of the class described, the combination of a bodyprovided with a bottom, said bottom including a flue-structure, saidflue-structure comprising a primary casing, an auxiliary casing withinsaid primary casing, said auxiliary casing comprising sides and anapertured top, legs formed upon said sides and connected to portions ofthe bottom of the body, a drain formed in said bottom, and means fordraining said drain.

3. in an apparatus of the class described, the combination of a bodyprovided with a bottom, said bottom comprising a plurality of V-shapedtroughs and a plurality of fluestructures, each flue-structurecomprising a primary casing and an auxiliary casing, each auxiliarycasing comprising parallel. sides with an integral, substantiallyll-shaped, apertured top, legs depending from each side, said legs bentand fastened to portions of the Vshaped troughs, a drain in said bottomand under ends of the troughs, and draining means connected to saiddrain.

a. In an apparatus of the class described,

the combination of a body provided with a bottom, said bottom includinga plurality of flue-structures, each flue-structure comprising a primarycasing closed at its top, an auxiliary casing positioned within theprimary casing under its top and having its lower end open, meanssecuring the lower portions of the auxiliary casing fixedly to theprimary casing, said bottom including a drain. and an outlet pipeconnected. to said drain.

In an apparatus of the class described, the combination o'l a bodyprovided with a bottom, said bottom including a plurality offlue-structures, each flue-structure comprising an inverted,substantially V-shaped primary casing, closed at the top, an invcrtedsubstantially \l-shaped hollow auxiliary casing entirely within saidprimary casing and permitting air to pass therethrough, said bottomprovided with a drain, and an outlet for said drain.

6. In an apparatus of the class'described, the combination of a bodyprovided with a bottom, said bottom including a plurality offlue-structures, each flue-structure comprising a primary casing closedat the top, a hollow auxiliary casing fixedly secured entirely withinthe primary casing and permitting air to pass therethrough, said bottomprovided. with a drain contiguous to the same ends of all of theflue-structures, and an outlet for said drain.

In testimony whereof I hereunto afiix my signature.

JOSEPH MILLER.

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